Solving Systems by Substitution

What is the solution to this system?
y = 2x + 1
y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to this system?
y = 4x + 1
3x + 2y = 13

• (1, 5)

• (5, 1)

• (0.25, 2)

• (-1,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)

• (1,3)

• (-3,1)

• (3,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system?
2x - 2y = 2
y = -5x + 14

• (4, 5)

• (2.5, 1.5)

• (1.5, 5)

• (1, 2.25)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following systems of equations using substitution:

y = 8

y = -4x + 4

• (8, -1)

• (-28, 8)

• (-1, 8)

• (8, -28)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following systems of equations using substitution:

x = 6

y = 2x - 3

• (6, 6)

• (6, 9)

• (9, 6)

• (9, 9)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The first step in solving using the substitution method is __________.

• get x by itself

• get y by itself

• get either variable by itself

• add the equations together

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

^{What is the solution?} 

• 1

• -2

• (1, 2)

• (1, -1)

Tags

CCSS.8.EE.C.8B

Solve the following system using the substitution strategy.
 -7x - 2y = -13
X = 2y + 11

• (5,6)

• (3,-4)

• (-4, 4)

• (-3, -4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve each system of equations.
y = 3x - 11  
2x + 3y = 0

• (-2,3)

• (-3,2)

• (3,-2)

• (2,-3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6